Sucker-rod hook



I May 15, 1928.

J. D. LEMEX SUCKER ROD HOOK Filed June 24, 1927 2 Sheets-Sheet May 15,1928. 1,669,418

J. D. LEMEYX SUCKER ROD HOOK FiledJune 24. 1927 2 Sheets-Sheet 2latented May THE, WEB.

can; STATES insane JOHN D. LEMEXLOF TULSA, oxnarroma.

s oKnn-non noon.

' Application filed mnezaism. Serial No..201,14;9.

My invention relates to im u'ovoiucnts in lmohs. and more particularlyto sucker rod hooks used in connection with sucker rod elevatorsemployed for elevating orloweringr oil well sucker or iuinping rods.

The prime object of the present invention is to provide a sucker rodheck of simple and strong constructiom embodying a lock. ing or latchmeans for preventing the hook from becoming accidentally disengaged froman elevator or other device to which it is applied.

'lTurther objects otthe present invention are, to provide new andimprovedlocking or latch mechanism and ineansi'or actuating thelockingmechanism, said mechanism and actuating means being whollycontained Within the hook structure; to provide a hook structure sodesigned that it has no projecting parts to catch or hang on the derrickor rigging; and to provide a safe and convenient handle for theoperator.

Various additional objects and advantages will eitherbe pointed out orbecome apparent from a consideration of an operative embodiment ashereinafter described and as illustrated by the accompanying drawings.In the drawings, which illustrate an application of my invention:

Fig. 1 is a front elevational view of a hook embodying my invention;

Fig. 2; a side elevational view; Fig. 3, a sectional view taken on lineIll-III of Fig. 2; and

Fig. 4, a view similar to Fig. 3, taken on line IV-IV of Fig. 2.

Referring to the drawings. and as prefeared, the sucker rod hook cesignated generallyby the numeral 5 includes an elongated body 6provided with a neck 7 having a slightly reduced and threaded endportion 8. 9 designates aclevis member designed, when ap plied to thehook, to swivel on the neck and is held in place thereon by a lock nut11 carried on the threaded portion 8 ofthe neck. I The elongated bodyportion of the hook is formed with a hand opening 1.2. and is cored orotherwise constructed to provide recesses, slots or spaces adapted toreceive locking or latch means and actuating; means for moving thelocking means into and. out of locking positions. As shown, the body isformed with a horizontally disposed space or recess 13 having aninclined bottom wall 14, a front vertically extending inclined recess i5(lGtllgl'lGfl to receive a latch orlocking bar or member iii, andaverticallyextending rear recess or space it? having an en. largcnientflSat its'uppor end. Locking bar 16 is slidably mounted in recess 15 and isdispose-iii at a slight angle to the vertical axis of thebody oi thehook. Bar 16 formed with an elongated slotiltl and with an aperturedhigiltll Said harfilfi is guided and positioned in the recess 15 bymeans of a pin 21 cooperatingwiththe slot Ether-cot; j

The h'uzki-ngbar actuating lliECltllllS-ili is Wholly containedwithinthe heel-restructure ill) and; as illustratedand as preferred,includes abcllcranlc loverQZ jlulcrunied on a pin 23 and having liSlOllfi flillIQl: at one end. iorlred and secured to the apertured lug of thebar 16 by a pin 25. The short arm oi: the bell crank lever is connectedto an operating lever or handle 27 by means of spin 528. The bell cranklever 2-9. and its operative connections are disposed in the cored-outportion or recess 13. and the said. lever 27 extends upwardly throughhand opening and has a reduced upper end 29 designed to engage a stopWall or shoulder to limit the inward movement of the said sirin CJpressed operating lever.

Arranged to bear against the hand lever 27, I provide a flat spriitig 31having its up per end secured to thchody by any suitable means. forinstance, by screws having threaded engagement with the body.

The nose of the hook is preferably formed with an. inclined face 33designed to cooperate with an inclined tacefi l: formed on the lower endoi the locking bar 16. These in clined faces in conjunction with theinclined positioned be and its connections tend to prevent an.accidental movement of inn; bar-to open position. Y

It will be understood that the locking bar may be readily moved intounlocked position by pressing: upon or rasping the operating lever Handmoving: it slightly against the pressure of the spring: 31., and thatthe loclc inn bar will be automatically returned to" loclrcd position bya release of lever 27;

What I claim is: i i. In a. sucker rod hook. the combination with anelongated body, of a vertically slidable locking bar member operablewithin the body and disposed in a plane inclinedto the the lock- Eli has

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vertical axis vof the body, and means for moving the locking member intoand out of locking position.

2. In a sucker rod hook, the combination with an elongated body, ofvertically slidable locking bar member operable Within the body anddisposed in a plane inclined to" the vertical axis of the body, andmeans for sliding the locking member into and out of locking position,said locking member and its actuatin means being positioned and openableWholly Within the hook structure.

, 3. In a sucker rod hook, the combination with an elongated body formedwith a vertically extending locking bar receiving recess, of avertically slidable locking bar mounted in the recess and having anelongated slot, a pin in the recess cooperating with :the said slot forpositioning and guiding the looking bar, and means for moving thelooking bar into and out of locking position including a bell cranklever and a ispning-pressed operating lever, said locking zbar anditsactuating means being positioned and operable Wholly within the hookstruci. In a sucker rod hook, the combination arm of the bell cranklever.

5. In a sucker rod hook, a slidable locking bar, and means forpositively sliding the bar into unlocked position and automaticallymoving it into locked position.

6. In a sucker rod hook, a slidable locking bar, and means forpositively sliding the bar into unlocked position and automaticallymoving it into locked position, said means including a bell crank leverpositioned Within the hook body and a spring-pressed operating leverconnected With the bell crank lever.

In testimony whereof I atlix my signature.

JOHN D. LEMEX.

